Bristol Palin was very much a fish out of water during the season premiere of Celebrity Wife Swap on Sunday, June 23. The single mother -- to son Tripp, 4 -- left her humble Wasilla, Alaskan abode for a more upscale, fast-paced lifestyle in Hollywood when she swapped lives with red carpet veteran Melissa Rivers.

Since both Bristol and Melissa are single mothers (divorced from John Endicott, Melissa is raising 12-year-old son Cooper by herself), Willow Palin (Bristol's 18-year-old sister) and Joan Rivers (Melissa's 80-year-old mom) subbed in as the respective households' caregiver.

"I learned nobody should judge anybody from where they come, or who they're related to, good or bad," she said, wiping away tears as she addressed Bristol. "You are your own person. And … I adore you. I just think you're great. I just had the best time with you. I think you're terrific."

The feelings were mutual. In an interview with Fox News prior to the season premiere, Bristol admitted that she, too, learned a lot from the notoriously outspoken comedienne and Fashion Police host.

"I think Joan is just awesome," she said. "I think at the end of the day, her family is the most important thing to her, just like with me -- my family is the most important thing to me."

While the legendary comic was forging bonds with 22-year-old Bristol, her daughter Melissa, 45, was busy trying to rein in Bristol's son.

And, ultimately, Melissa was able to give Bristol some valuable parenting advice. "She's a single mom to a boy as well, so there were some good things that she got to tell me -- some secrets on how to discipline and hoe to raise a boy by yourself," Bristol told Fox News.